hurd: fix receiver lookup in termctty_open_terminal

* hurd/hurd_types.h (ctty_t): New type definition.
* hurd/term.defs (ctty_t): New type definition.
* term/mig-decls.h: New file.
* term/mig-mutate.h: Add mutators, includes.
* term/term.h: Add include guards.
* term/users.c (S_termctty_open_terminal): Fix receiver lookup.
* boot/boot.c (S_termctty_open_terminal): Likewise.

4 files changed, 57 insertions, 4 deletions

diff --git a/term/mig-decls.h b/term/mig-decls.h
new file mode 100644
index 00000000..c91b133a
--- /dev/null
+++ b/term/mig-decls.h
@@ -0,0 +1,42 @@
+/*
+   Copyright (C) 2014 Free Software Foundation, Inc.
+   Written by Justus Winter.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   The GNU Hurd is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with the GNU Hurd.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef __TERM_MIG_DECLS_H__
+#define __TERM_MIG_DECLS_H__
+
+#include <hurd/ports.h>
+
+#include "term.h"
+
+/* Called by server stub functions.  */
+
+static inline struct port_info * __attribute__ ((unused))
+begin_using_ctty_port (mach_port_t port)
+{
+  return ports_lookup_port (term_bucket, port, cttyid_class);
+}
+
+static inline void __attribute__ ((unused))
+end_using_ctty (struct port_info *p)
+{
+  if (p)
+    ports_port_deref (p);
+}
+
+#endif /* __TERM_MIG_DECLS_H__ */
diff --git a/term/mig-mutate.h b/term/mig-mutate.h
index a6b99fe6..15457192 100644
--- a/term/mig-mutate.h
+++ b/term/mig-mutate.h
@@ -21,5 +21,13 @@
 
 #define IO_INTRAN trivfs_protid_t trivfs_begin_using_protid (io_t)
 #define IO_DESTRUCTOR trivfs_end_using_protid (trivfs_protid_t)
+
+#define CTTY_INTRAN					\
+  port_info_t begin_using_ctty_port (mach_port_t)
+#define CTTY_DESTRUCTOR					\
+  end_using_ctty (port_info_t)
+
 #define TIOCTL_IMPORTS import "../libtrivfs/mig-decls.h";
-#define TERM_IMPORTS import "../libtrivfs/mig-decls.h";
+#define TERM_IMPORTS					\
+  import "../libtrivfs/mig-decls.h";			\
+  import "mig-decls.h";
diff --git a/term/term.h b/term/term.h
index df82b6c9..3067425c 100644
--- a/term/term.h
+++ b/term/term.h
@@ -18,6 +18,9 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
 
+#ifndef __HURD_TERM_H__
+#define __HURD_TERM_H__
+
 #include <pthread.h>
 #include <assert.h>
 #include <errno.h>
@@ -391,3 +394,5 @@ error_t pty_io_select (struct trivfs_protid *, mach_port_t,
 error_t pty_open_hook (struct trivfs_control *, struct iouser *, int);
 error_t pty_po_create_hook (struct trivfs_peropen *);
 error_t pty_po_destroy_hook (struct trivfs_peropen *);
+
+#endif	/* __HURD_TERM_H__ */
diff --git a/term/users.c b/term/users.c
index 9bd51d05..8151dc70 100644
--- a/term/users.c
+++ b/term/users.c
@@ -379,7 +379,7 @@ S_term_getctty (struct trivfs_protid *cred,
 
 /* Implement termctty_open_terminal as described in <hurd/term.defs>.  */
 kern_return_t
-S_termctty_open_terminal (mach_port_t arg,
+S_termctty_open_terminal (struct port_info *pi,
 			  int flags,
 			  mach_port_t *result,
 			  mach_msg_type_name_t *resulttype)
@@ -388,7 +388,6 @@ S_termctty_open_terminal (mach_port_t arg,
   mach_port_t new_realnode;
   struct iouser *user;
   struct trivfs_protid *newcred;
-  struct port_info *pi = ports_lookup_port (term_bucket, arg, cttyid_class);
   if (!pi)
     return EOPNOTSUPP;
 
@@ -409,7 +408,6 @@ S_termctty_open_terminal (mach_port_t arg,
 	}
     }
 
-  ports_port_deref (pi);
   return err;
 }